Ultrasound Imaging of Brain Shunts
نویسندگان
چکیده
The most common treatment for hydrocephalus is to place a cerebrospinal fluid (CSF) shunt to divert excess CSF to a re-absorption site and regulate the intracranial pressure. However, CSF shunts have an unacceptably high incidence of occlusions from in-grown tissues. Our project is to explore ultrasound imaging, together with photoelectric excitation to image the occlusions and brain shunts, so a system of minimally invasive clearing of the brain shunts could be further developed.
منابع مشابه
Review Paper: A Review on Brain Stimulation Using Low Intensity Focused Ultrasound
Brain stimulation techniques are important in both basic and clinical studies. Majority of well-known brain stimulating techniques have low spatial resolution or entail invasive processes. Low intensity focused ultrasound (LIFU) seems to be a proper candidate for dealing with such deficiencies. This review recapitulates studies which explored the effects of LIFU on brain str...
متن کاملCompensation of brain shift during surgery using non-rigid registration of MR and ultrasound images
Background: Surgery and accurate removal of the brain tumor in the operating room and after opening the scalp is one of the major challenges for neurosurgeons due to the removal of skull pressure and displacement and deformation of the brain tissue. This displacement of the brain changes the location of the tumor relative to the MR image taken preoperatively. Methods: This study, which is done...
متن کاملCongenital portosystemic shunts in children: recognition, evaluation, and management.
Congenital portosystemic shunts are present in one in 30,000 children. Among the associated risks of severe complications are neonatal cholestasis, benign and malignant liver tumors, hepatopulmonary syndrome, portopulmonary hypertension, and encephalopathy. They can be detected on prenatal ultrasonograms, during the investigation of a positive galactosemia screening test in neonates or of a com...
متن کاملBlood Brain Barrier Disruption by Focused Ultrasound and Microbubbles: A Numerical Study on Mechanical Effects
Introduction: Microbubbles are widely used as contrast agent in diagnostic ultrasound. Recently they have shown good potential for applications in the therapeutic field such as drug delivery to the brain. Recent studies have shown focused ultrasound in conjunction with injected micro-bubbles could temporarily disrupt blood-brain barrier and let therapeutic agents transport into...
متن کامل